| igm | kang1291 | Kanggape | R,
R,
Tanggu | 60 |
| kcd | ngka1235 | Kanum | S,
M,
Tonda | 41 |
| khp | kapo1250 | Kapauri | K,
Kapore | 38 |
| dju | kapr1245 | Kapriman | S,
S,
Bahinemo | 120 |
| kgv | kara1499 | Karas | T,
W,
W,
Karas | 40 |
| xrw | kara1495 | Karawa | S,
Ram | 46 |
| kmf | kare1341 | Kare | T,
M,
C,
Kare | 375 |
| kgw | karo1303 | Karon Dori | Maybrat | 80 |
| khs | kasu1251 | Kasua | T,
Bosavi | 188 |
| kmg | wemo1239 | Kâte (Wemo Dialect) | T,
F,
H,
Eastern | 54 |
| kmg | wamo1241 | Kâte (Wâmora Dialect) | T,
F,
H,
Eastern | 56 |
| kmg | mago1249 | Kâte (Mâgobineng Dialect) | T,
F,
H,
Eastern | 54 |
| kmg | kate1253 | Kâte | T,
F,
H,
Eastern | 140 |
| bpp | kaur1271 | Kaure | K,
Kaure Proper | 327 |
| xau | kauw1242 | Kauwera | T,
G,
K,
Nuclear | 40 |
| kcb | kawa1276 | Kawacha | T,
A,
Nuclear Angan | 106 |
| kyt | kaya1328 | Kayagar | T,
Kayagar | 128 |
| kct | kaia1245 | Kayan | R,
R,
O,
Watam | 64 |
| bmh | kein1239 | Kein | T,
M,
C,
Kokon | 352 |
| bzp | kemb1235 | Kemberano | T,
S,
S,
Eastern | 40 |
| kmt | kemt1242 | Kemtuik | Nimboran | 40 |
| xeu | keor1235 | Keoru-Ahia | T,
E,
N,
W. | 103 |
| xeu | ahea1235 | Keoru-Ahia (Aheave Dialect) | T,
E,
N,
W. | 104 |
| kxz | kere1286 | Kerewo | T,
Kiwaian | 101 |
| xes | kesa1244 | Kesawai | T,
M,
R,
Evapia | 307 |
| xte | kete1254 | Ketengban | T,
M,
Western | 102 |
| khh | kehu1238 | Keuw | East Geelvink Bay | 290 |
| prm | kibi1239 | Kibiri | T,
Kiwaian | 101 |
| kig | kima1246 | Kimaghima | T,
Kolopom | 45 |
| kco | kina1251 | Kinalakna | T,
F,
H,
Western | 57 |
| geb | kire1240 | Kire | R,
R,
Mikarew | 64 |
| kiy | kiri1256 | Kirikiri | L,
T,
West | 238 |
| kiy | faia1238 | Kirikiri (Faia Dialect) | L,
T,
West | 124 |
| kyo | prob1239 | Klon (Probur Dialect) | T,
W,
T,
A,
Alor | 119 |
| kyo | hale1239 | Klon (Halerman Dialect) | T,
W,
T,
A,
Alor | 120 |
| kyo | kelo1247 | Klon | T,
W,
W,
A,
Alor | 284 |
| kgu | kobo1248 | Kobol | T,
M,
C,
P,
Omosan | 347 |
| kpw | kobo1249 | Kobon | T,
M,
Kalam-Kobon | 486 |
| kqi | koit1244 | Koitabu | T,
S,
K,
Koiaric | 176 |
| xod | koko1265 | Kokoda (Tarof Dialect) | T,
S,
S,
Central | 38 |
| xod | kasu1243 | Kokoda (Kasuweri Dialect) | T,
S,
S,
Central | 38 |
| kol | kolp1236 | Kol | Isolate | 219 |
| kpf | komb1273 | Komba (Gwama River (North) Dialect) | T,
F,
H,
Western | 160 |
| kpf | komb1273 | Komba (Gwama River (South) Dialect) | T,
F,
H,
Western | 159 |
| kpf | komb1273 | Komba (Puleng River Dialect) | T,
F,
H,
Western | 161 |
| kpf | komb1273 | Komba (Ândâ River Dialect) | T,
F,
H,
Western | 161 |
| kpf | komb1273 | Komba | T,
F,
H,
Western | 198 |
| tyn | komb1274 | Kombai | T,
O,
A,
Dumut | 71 |
| kzv | komy1238 | Komyandaret | T,
O,
O,
Ngalum | 211 |
| kxw | kona1242 | Konai | T,
East Strickland | 100 |
